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| author | Dan Gohman <gohman@apple.com> | 2010-12-13 22:47:57 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-12-13 22:47:57 +0000 |
| commit | 2cd195291722ad0153125a6c032c96e361d8c48e (patch) | |
| tree | ec8088d05326161d87e05a59793a9ddc462bfcb7 /lib/Analysis/MemoryDependenceAnalysis.cpp | |
| parent | e8d02539d7981c07d301d91a6a5b6ad34099b510 (diff) | |
| download | llvm-2cd195291722ad0153125a6c032c96e361d8c48e.tar.gz llvm-2cd195291722ad0153125a6c032c96e361d8c48e.tar.bz2 llvm-2cd195291722ad0153125a6c032c96e361d8c48e.tar.xz | |
Update memdep to handle PartialAlias as MayAlias.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121723 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/MemoryDependenceAnalysis.cpp')
| -rw-r--r-- | lib/Analysis/MemoryDependenceAnalysis.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/Analysis/MemoryDependenceAnalysis.cpp b/lib/Analysis/MemoryDependenceAnalysis.cpp index c833184b6f..1cd7dec198 100644 --- a/lib/Analysis/MemoryDependenceAnalysis.cpp +++ b/lib/Analysis/MemoryDependenceAnalysis.cpp @@ -291,7 +291,7 @@ getPointerDependencyFrom(const AliasAnalysis::Location &MemLoc, bool isLoad, continue; // May-alias loads don't depend on each other without a dependence. - if (isLoad && R == AliasAnalysis::MayAlias) + if (isLoad && R != AliasAnalysis::MustAlias) continue; // Stores don't alias loads from read-only memory. @@ -323,9 +323,9 @@ getPointerDependencyFrom(const AliasAnalysis::Location &MemLoc, bool isLoad, if (R == AliasAnalysis::NoAlias) continue; - if (R == AliasAnalysis::MayAlias) - return MemDepResult::getClobber(Inst); - return MemDepResult::getDef(Inst); + if (R == AliasAnalysis::MustAlias) + return MemDepResult::getDef(Inst); + return MemDepResult::getClobber(Inst); } // If this is an allocation, and if we know that the accessed pointer is to |